Method for measuring shape parameters of yarn

Details Method for measuring shape parameters of yarn Method for measuring shape parameters of yarn

1984-11-21

1987-01-06

Evans, F. L.

Optics: measuring and testing

By configuration comparison

With photosensitive film or plate

356429, 250571, G01B 1104

Patent

active

046342800

ABSTRACT:
A method for determining a parameter that characterizes the cross sectional shape of a running multilobal filament or yarns thereof, by light scattering analysis. The analysis is based on detecting and measuring the intensity of light scattered from the yarn in the plane of the incident beam which is oriented perpendicularly to the longitudinal axis of the yarn. By comparing the intensity of the scattered light with previously measured standard values for the particular yarn geometry being measured, using correlation techniques, the average cross sectional shape parameter can be determined.

REFERENCES:
patent: 4091368 (1978-05-01), Schwartz
patent: 4389575 (1983-06-01), Cole

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